Chimney cap



March 27, 1928. 1,664,315

, R. P. ORR

CHIMNEY'CAP Filed Oct. 27. 1926 lNVENTOR ROBER ORR BY ATTORNEYS Patented Mar. 27, 1928.

UNITED STATES ROBERT 1?. ORR, F SCHENEGTADY, NEW YORK.

CHIMNEY CAP.

Application filed' October 27, 1926. Serial No. 144,594.

This invention relates to chimney caps or cowls and has for an object to provide an improved construction wherein a simple formation is presented that will effectively act to protect the interior of a chimney.

Another object of the invention is to provide a chimney cap wherein the interior of this chimney is not only protected against rain and foreign matter but means are presented which will cause a draught and thereby cause the chimney to function in an eflicient manner.

A still further object, more specifically, is to provide a chimney cap or cowl with in clined deflecting members held normally stationary and functioning to cause the wind to produce a draught in the chimney to which the device is secured.

In the accompanying drawing- Figure 1 is a perspective View of a chim ney cap or cowl shown in position, the same disclosing an embodiment of the invention.

Figure 2 is a sectional view through Figure 1 approximately on line 22.

Referring to the accompanying drawing by numerals, 1 indicates a chimney of any desired kind which is provided with. the usual flue structure 2. In the drawing, the chimney 1 is shown as provided with only one flue 2 but if desired, two or more flues could be provided without departing from the spirit of the invention. Mounted on the chimney 1 is a member 3 formed with an inclined surface t on each face of the chimney. The member 3 may be made from any desired material and is adapted to support a number of posts 5 which in turn will support plate 6 of metal, or other material. The plate 6 overlaps to an appreciable extent the flue 2 and partly overlaps member 3 whereby rain and foreign matter of different kinds is prevented from moving into the flue 2. The member 3 may be made from metal or other material and the under surslight movement of air will cause an appre ciable draught as the air is more or less concentrated as it moves between the respectlve posts 5.

The device is preferably made of sheet metal, and when formed of this material, the side walls 7 are formed with an offset portion 8 which snugly fits over the chimney 1 and a shoulder 9 rests on top of the chimney. The side walls 7 merge into the respective corner posts 5 and also merge into respective deflecting members 4.. 'In the drawing, the plate 6 is bowed though it might be fiat if desired. The chimney cap has been shown rectangular but it could be made round or other shape to fit chimneys or stove pipes of any desired kind.

What I claim is:

A chimney cap, comprising a metal body formed with an offset portion at the lower end adapted to overlap a chimney, said olfset portionpresenting a shoulder adapted to rest on top of the chimney, part ofsaid body extending upwardly from said offset portion for presenting an enclosing wall, said wall. being cut at two places on each side with part forming upstanding corner posts and the remaining part positioned to present an inclined air deflecting portion spaced above the top of the chimney, and a covering plate secured directly to the top of said posts and extending across the chimney on which the device is mounted to a pointsubstantially above the outer edge of said deflecting portion.

ROBERT P. ORR. 

